US2993794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing keratin protein
Assignee: General Foods Corp
•
Filing: 1958-06-25
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Granted: 1961-07-25
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Moshy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PROCESS FOR EXTRACTING EDIBLE KERATIN PROTEIN IN SUBSTANTIALLY NON-DEGRADED FROM FROM KERATIN SOURCES WHICH COMPRISES SOLUBILIZING A KERATIN SOURCE IN DIALKYL SULFOXIDE, HAVING 1 TO 6 CARBON ATOMS IN THE ALKYL GROUP.
Claim 2
Dependent Claim
33 words
A PROCESS FOR EXTRACTING EDIBLE KERATIN PROTEIN IN SUBSTANTIALLY NON-DEGRADED FROM FROM KERATIN SOURCES WHICH COMPRISES SOLUBILIZING A KERATIN SOURCE IN DIALKYL SULFOXIDE, HAVING 1 TO 6 CARBON ATOMS IN THE ALKYL GROUP.
References Cited (Backward Citations)
US1921398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |